| Finity Sports Group Limited | Glasgow | 2025 |
| Finlay Carmichael PT Ltd | Oban | 2021 |
| Finnesse Careers and Empowerment C.I.C. | Londonderry | 2023 |
| Finneys Wheels Limited | Birmingham | 2018 |
| Finngaill Marine Services Ltd | Southampton | 2021 |
| Fino Groups Ltd | London | 2025 |
| Finopt AI Impact Hub CIC | London | 2025 |
| Finsage Ltd | London | 2022 |
| Finsights Group Ltd | London | 2025 |
| Finsimco Ltd | London | 2019 |
| Finta Football Academy (Essex) Limited | Herne Bay | 2023 |
| Finta Futsal Academy (Essex) Limited | Herne Bay | 2023 |
| Fintangible Limited | London | 2022 |
| Fintech ED Ltd | Solihull | 2026 |
| Fintecheduai Ltd | Pinner | 2025 |
| Fintivate Limited | London | 2024 |
| Finton House Educational Trust | London | 1987 |
| Finura College of International Studies Ltd | London | 2025 |
| Finwoke Limited | London | 2019 |
| Fin’S Fast Track Limited | Marlow | 2025 |
| Fio's Child Minding Ltd | London | 2026 |
| Fiona Beaumont Education Consultancy Ltd | Preston | 2019 |
| Fiona Brackenbury Ltd | East Molesey | 2019 |
| Fiona Brown Safeguarding and Send Consultant Ltd | Leeds | 2016 |
| Fiona Education Consulting Ltd | Bolton | 2016 |
| Fiona Gray Tutoring Ltd | Northwich | 2025 |
| Fiona Henderson School of Dance Ltd | Peebles | 2024 |
| Fiona Hudson-Kelly Training Ltd | Rugby | 2025 |
| Fiona Pocock Education Ltd | Abingdon | 2024 |
| Fiona Robinson Ltd | Bury | 2020 |
| Fiona Smart Coaching & Consultancy Limited | Annan | 2022 |
| Fiona Webb Education Improvement Limited | Olney | 2022 |
| Fionita's Project CIC | Tottenham | 2019 |
| Fioretti Trust | Birmingham | 2016 |
| Fiqhra Ltd | Bolton | 2020 |
| FIR Tree Fishery CIC | Wigan | 2011 |
| FIR Trees Nursery School Limited | Hull | 2012 |
| Fircroft College of Adult Education | Birmingham | 2023 |
| Fire & Earth Limited | Coventry | 2022 |
| Fire & Earth Massage Academy Limited | Coventry | 2018 |
| Fire + Alchemy Ltd | London | 2022 |
| Fire and Wire Ltd | Forres | 2022 |
| Fire Basketball CIC | Great Warley | 2010 |
| Fire Door Training and Inspection Limited | Durham | 2003 |
| Fire Industry Training Academy Limited | Caerphilly | 2021 |
| Fire Risk Solutions Network Limited | East Kilbride | 2012 |
| Fire Safe Global Ltd | Ashford | 2022 |
| Fire Safety Law Limited | Blackpool | 2021 |
| Fire Safety Training and Support Ltd | Droitwich | 2014 |
| Fire the Inventor | London | 2010 |
| Fire Training Services (North-East) Ltd | Cramlington | 2013 |
| Fire Virtue Foundation | London | 2025 |
| Fireant Networks Limited | Harlow | 2020 |
| Firebird Industrial Training Ltd | Newton-Le-Willows | 2021 |
| Firebrand Training Limited | London | 2000 |
| Fired Arts Centre Ltd | Cheltenham | 2024 |
| Fired UP Careers Ltd | Salisbury | 2018 |
| Firedemos Ltd | Church Stretton | 2025 |
| Fireflies Forest School Ltd | Chatteris | 2024 |
| Fireflies Netball CIC | Southampton | 2026 |
| Fireflies Nurture & Thrive Limited | Inverurie | 2022 |
| Firefly Bidco Limited | London | 2023 |
| Firefly Education London Ltd | London | 2013 |
| Firefly FDN Ltd | Blisworth | 2026 |
| Firefly Learning Limited | London | 2016 |
| Firefly Leicester Community Interest Company | Leicester | 2014 |
| Firefly Psychology Group Limited | London | 2023 |
| Firefly Training Emea Limited | London | 2005 |
| Firefly Tutoring Limited | Bristol | 2024 |
| Firehorse International Limited | Croydon | 2023 |
| Firemark Education C.I.C. | London | 2013 |
| Fireplace Story Limited | Bournemouth | 2020 |
| FIRESAFE999 Limited | Stone | 2006 |
| Fireside Adventures Ltd | Neston | 2020 |
| Firesmart Solutions NW Ltd | Tyldesley | 2021 |
| Firestone Pictures Ltd | Hove | 2014 |
| Firm Foundation (UK) Limited | Brockley | 2011 |
| Firm Foundations (EA) Limited | Middlesex | 2005 |
| Firm Foundations for Children and Adolescents C.I.C. | Twickenham | 2003 |
| FIRM5 Community CIC | Leeds | 2026 |
| Firmament Education Limited | Chelmsford | 2014 |
| Firmly Rooted Ltd | Milton Keynes | 2021 |
| Firmseo Ltd | Manchester | 2021 |
| Firoz Limited | London | 2012 |
| Firs Education Limited | Chester | 2009 |
| Firs Farm Tennis Ltd | Enfield | 2020 |
| First 2 ACT Ltd | Llanfechain | 2021 |
| First 4 H&S Training Limited | Derby | 2018 |
| First 4 Swimming Limited | Fleet | 2022 |
| First 4 Tutors Ltd | Plymouth | 2021 |
| First Academy Foundation | Birmingham | 2013 |
| First Academy Limited | Birmingham | 2011 |
| First ACT Ltd | London | 2024 |
| First Adventure Childcare Limited | Glasgow | 2020 |
| First Adventures Limited | Linlithgow | 2003 |
| First Aerospace Limited | Guildford | 2004 |
| First Aesthetics TA Ltd | Guildford | 2024 |
| First AID & Compliance Training Ltd | Warminster | 2016 |
| First AID & Site Safety Training Ltd | Glasgow | 2024 |
| First AID 4 Life Limited | Bovey Tracey | 2025 |